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http://www.surpluscenter.com/Brands/G-G-Mfg/3-4-KEYED-12-HP-UNIVERSAL-JOINT-1-2729.axd

Has anyone used these? They are speced at 1k max rpm. 15* usable angle. Would 30* of total movement work for a steer axle? How can i calculate the rpm of my axles? My plans involve a 125 dirt bike power pack. And a live front axle with a diff. Anyone have any advise or experience here?

I have the front half of a manco buggy (i think). Since im already building a chassis it shoune easy enough to use it. Also what can i do about brakes? I dont trust the band type that mowers have. Ive crashed a few modified tractors when they've burned out. The axle shafts are hexagonal...

So i have to come into possession of an old craftsman lawn tractor. I was thinking of using the chain driven axle( with diff), 4 speed transmission, and possibly the front axle. My thinking is that putting the transmission behind the seat, i can put it infirst gear and let them creep aaround...

After restarting and swearing at my device, it cooperated.

Mechanically sound being the operative words. Its made from aluminum scrap. The welds look to be made by a first grader. My technology is not cooperating but currently workimg on pictures.

Outstanding. Now i just have to build a new chassis and steeringsetup . The chassis as set up currently has the bearings very close together. Am i correct in my thinking that they shouldbe as close to the wheels as possible? About 2" in from the wheels is my current plan.

Is it possible that i have a metric sized axle? It seems like a portion of the parts are good quality and not home made. Let me try some pictures.

I just picked up a homeade kart with a 1" rear axle. The only bearings i can find online are for 5/8" id. My math is rusty but it seems like they wont fit. Am i missing something obvious or am i not searchimg the right place? Any help would greatly appreciated.